The relationship between fetal biophysical assessment, umbilical artery velocimetry, and fetal acidosis.
Publication/Presentation Date
4-1-1991
Abstract
In a prospective study of 62 patients undergoing cesarean delivery before the onset of labor, fetal biophysical assessment and umbilical artery systolic-diastolic ratios (S/Ds) were performed within 3 hours of delivery. There was a significant relationship between the fetal biophysical profile score and cord arterial as well as cord venous pH. However, there was no identifiable relationship between S/D and cord arterial or venous pH. The efficacies of the biophysical components alone (nonstress test [NST] and fetal biophysical profile) and in combination with S/D to predict fetal acidosis were determined. The NST had the best sensitivity (100%) and negative predictive value (100%). The fetal biophysical profile had the best specificity (91%), positive predictive value (62%), and overall efficiency (90%). The S/D had the lowest sensitivity (66%), specificity (42%), positive predictive value (16%), negative predictive value (88%), and overall efficiency (45%). The addition of S/D to the NST or fetal biophysical profile did not improve diagnostic accuracy. These data suggest that the NST should be used as a primary test for the antepartum detection of fetal acidosis, whereas the fetal biophysical profile is a reasonable adjunct test. The umbilical artery S/D, as determined by continuous-wave Doppler velocimetry, has no value as a primary method or an adjunct in the antepartum detection of fetal acidosis.
Volume
77
Issue
4
First Page
622
Last Page
626
ISSN
0029-7844
Published In/Presented At
Vintzileos, A. M., Campbell, W. A., Rodis, J. F., McLean, D. A., Fleming, A. D., & Scorza, W. E. (1991). The relationship between fetal biophysical assessment, umbilical artery velocimetry, and fetal acidosis. Obstetrics and gynecology, 77(4), 622–626.
Disciplines
Medicine and Health Sciences
PubMedID
2002989
Department(s)
Department of Obstetrics and Gynecology
Document Type
Article